He also believes the radical change would give younger workers more opportunity to enter the workforce and be a positive for the economy and financial markets.

"It's a society of knowledge and experience. You have better experience and knowledge when you are 60, 65 and 70," Slim said.

The $83 billion man: It's an interesting idea considering the source: a self-made billionaire who Forbes estimates is worth about $83 billion. Slim has been alternating the crown for the world's richest man with Microsoft (MSFT)founder Bill Gates, whose wealth is valued at nearly $81 billion.

Slim got into investing before he even entered high school, buying his first bond at just 12 years old and stocks a year or two later.

"It is mainly going to the financial economy. If we take part of it to the real economy and develop infrastructure and other investments, we will have construction, employment and better salaries," he said.